期刊
ANTIOXIDANTS & REDOX SIGNALING
卷 19, 期 11, 页码 1257-1265出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/ars.2012.5023
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资金
- Fondo Maria Vinas-ANII [FMV_2913]
- ICGEB (Italy)
- CSIC-Uruguay
- Sistema Nacional de Becas-ANII
Significance: Nitrated derivatives of unsaturated fatty acids (nitro-fatty acids) are being formed and detected in human plasma, cell membranes, and tissue, triggering signaling cascades via covalent and reversible post-translational modifications of susceptible nucleophilic amino acids in transcriptional regulatory proteins and enzymes. Recent Advances: Nitro-fatty acids modulate metabolic as well as inflammatory signaling pathways, including the p65 subunit of nuclear factor B and the transcription factor peroxisome proliferator-activated receptor-. Moreover, nitro-fatty acids can activate heat shock as well as phase II antioxidant responses. As electrophiles, they also activate the Nuclear factor erythroid 2-related factor 2 pathway. Critical Issues: We first discuss the mechanisms of nitro-fatty acid formation as well as their key chemical and biochemical properties, including their capacity to release nitric oxide and exert antioxidant actions. The electrophilic properties of nitro-fatty acids to activate anti-inflammatory signaling pathways are discussed in detail. A critical issue is the influence of nitroarachidonic acid on prostaglandin endoperoxide H synthases, modulating inflammatory processes through redirection of arachidonic acid metabolism and signaling. Future Directions: Based on this information, we analyze in vivo data supporting nitro-fatty acids as promising pharmacological tools to prevent inflammatory diseases associated with oxidative and nitrative stress conditions. A key future issue is to evaluate whether nitro-fatty acid supplementation would be useful for human diseases linked to inflammation as well as their potential toxicity when administered by long periods of time. Antioxid. Redox Signal. 19, 1257-1265.
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